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(No Mqrlel'.) 2 Sheets-Sheet, 1.

W. WENSTRGM.

ROLLING MILL.

Patented Mar. 7.1882.

WITNESSES fimw BY l v ATTORNEYS.

(No Model!) 2-Sheets-Shet w. WENSTRGM.

ROLLING MILL.

Patented Mar. 7,1882.

J I I c '1 I 1 2 w E F 3 ""l x WITNESSES: I INVENTOR: wi y ATTQREYS.

NITED STATES PATENT QFFICE.

WILHELM WENSTROM, OF OREBRO, SWEDEN.

ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 254,745, dated March'7, 1882.

Application filed October 13, 1880. (No model.) Patented in England July22, 1880, in France July 22, 1880, in Germany July 27,- 1880, in BelgiumJuly 29, [880, in Sweden July 31, 1880, and in Austria. February 28,1881.

To all whom it may concern:

Be it known that I, WILHELM WENSTROM, of Orebro, Sweden, have invented anew and Improved Universal Rolling-Mill, of which the following is aspecification.

My invention relates to that class of rollingmills in which one pair ofhorizontal and one pair of vertical rolls are adapted to roll metalsimultaneously upon four sides, and are made adjustable with relation toeach other, whereby they may be adapted to roll bars or plates ofdifferent sizes.

The object of my invention is to give the rolls an exact and steadymotion under all circumstances, and to realize a compactness ofconstruction and arrangement by which the bearings shall be adapted towithstand the required pressure without straining or displacement.

The invention consists in certain novel features of constructionrelating'to diflerent parts of the mill, as hereinafter described andclaimed.

In the accompanying drawings, Figure 1 is a cross vertical section of arolling-mill embodying my improvements. Fig. 2 is a front elevation,partly in section. Fig. 3 is a horizontal section through the frame andedge rolls T V. Fig. 4 is a perspective view with the principal parts ofthe mill cut in section, showin g their relative positions and general.arrangement. Fig. 5 is a vertical section of the main rolls A K andguides H and G. Fig. 6 is a perspective view of journal-box U, rolls V,A, and K, and rib Z of carriage M.

Bolling-mills of the class to which my invention belongs have heretoforebeen constructed with the vertical rolls arranged at the ends of thehorizontal rolls, and to accommodate this arrangement it is necessarythat the journals of the horizontal rolls shall project beyond eachother longitudinally in opposite directions. The horizontal rolls thenmust be placed near the overlapping ends of their respective journals tobring them in position to operate together; but this causes the strainto be thrown almost entirely upon one of the two bearings of eachhorizontal roll, and thus the operation of the mill is renderedunsteady, if not altogether ineffectual. In order to secure an evennessand steadiness of operation, I, on the contrary, adopt the followingcompactcon struction: The horizontal rolls A and K are secured upontheir respective journals about midway between the bearings of saidjournals, so that the strain will be equally divided between thebearings. The journal-box ot' the upper roll, A, consists of the singlecasting B B, which is adapted to move equally in every part by means ofthe screws D, rods J, and springs I. The said journal-box of roll A isadapted to slide up and down in corner ways or recesses n in columns 0of the rectangular frame, for the purpose of adjusting the upper roll toor from the lower roll, K. The bearings of the lower roll, K, arearranged directly under those of the upper roll, and as this roll isalso secured upon the central portion of its journal, the pressureuponroll K will be equally distributed between its bearings. Thevertical roll T is journaled in rigid bearings secured between thebearings of the horizontal rolls, while the movable vertical roll V isjournaled in a box, U, which is supported by the journal-box B B andadapted to be adjusted either vertically with roll A or laterally withroll K. Thus the roll V is likewise arranged between the bearings of theupper and lower rolls, and we have a perfectly compact structure.

D D are screws running through the top of the machine, their lower endspressing upon the top of journal-box B B, and provided at their upperends with spur-gears E, which are operated by pinion F, shaft Gr, andhandwheel H. Y

On one end otjournal-box B B, and projecting inwardly, are ribs X, fromwhich the journal-box U of side roll, V, is suspended, and upon which itslides horizontally. Journalbox U of side roll, V, is shown inperspective and partially in section in Fig. 4. It is constructed withtwo grooves, W, fitted to slide upon ribs X of journal-box B B, and isprovided with pendent flanges 19, forming vertical. ways Y, whichreceive ribs Z of sliding carriage M, as shown in Fig. 4.

M is a sliding carriage, adapted to move horizontally on suitable waysin the usual and well-known manner shown in metal-planing machines. Theshaft of lower roll, K, is journaled in suitable boxes on carriage M.

Near one end of carriage M are upwardlyprojecting ribs Z,adapt-ed toslidefreely within 5 ways or recesses Y, as shown in Figs. tand 6.

Attached to the under side of the bed of carriage M is a long out orsleeve, P, through which the screw 0 passes. Screw O is prevented frommoving lengthwise in stationary 1o journal-boxes in the usual manner,and is provided on one end with a bevel-wheel, S, which is revolved bypinion R on rod 76 by turning hand-wheel Q.

Gear-wheels C D may be mounted on the shafts of rolls A and K,respectively, and two spur-wheels, E and F, engaging with each other,and also with the spur-wheels O and D, respectively,are arranged asshown in Fig. 1, thus permitting the rolls to separate, while theirgear-wheels O and D remain in gearing with wheels E and F. Gear-wheel Fis made broad on its face, so as-to remain in contact with wheel Dduring the sliding of carriage M.

The bar of metal, 00 to be rolled is guided to and from the rolls A K VT by guide-plates G, H, H and G by the former two on entering and thelatter two on leaving the machine. Guide-plate H forms a bottom and oneside support for the entering bar of metal, and is constructed as shownin Fig. 4, and is firm- 1y attached to carriage M. Guide G is anedge-guide, and is secured to the main frame, as shown in same figure.Guides H and G are arranged on the back of the machine. The

and is attached to and moves laterally with carriage M. Guide G isrigidly attached to side L of upper frame orjournal-box B B,so as tomove up and down with roll A.

It will be seen from the above that rolls A and V are moved together upor down, as required, by turning hand-wheel H.

Journal-box E of roll T is rigidly attached to one end of the mainframe, the lower edge of roll Tjust clearing the top of roll K, so thatroll K may be moved under it. 1t is also evident that by the arrangementof the guideplates H and H which are attached to carriage M, andconsequently move horizontally with roll K, and guide G being attachedto the main frame, thereby remaining always in position with fixed rollT, and guide G being top of guide H is level with the top of roll K,

attached to journal-box B B of upper roll, A, moving with it wheneverraised or lowered, the said guides H G are automatic in their adjustmentand mode of operation. By suspending thenpperroll, A, by rods I andsprings J the rolls A and K1are held at any distance required from eachother, the screws D adjusting such distance as herein shown.

The operation of myinvention is as follows: The thickness and width ofbar required being determined, I first raise the upper roll, A, byturning hand-wheel H until the horizontal rolls are adapted to roll thethickness of metal required. Then I turn hand-wheel Q, which gives ahorizontal motion to carriage M and moves rolls K and V until thevertical rolls are adapted to roll the required breadth of bar. At thesame time that the rolls are adjusted the guides H, H and G are alsoautomatically adjusted to suit the. size of bar'to be made.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a rolling-mill, the combination, with the rolls A K T V, of fourshort fiat guides, one edge guide, G, fixed at the standard, a second aflanged guide, H, that follows the sliding frame M in all its movements,a third, H leading from the lower roll underneath the bar or plate, anda flat guide, G moving with the top roll, as shown and described.

' 2. In a rolling-mill, the combination of the horizontal rolls A and K,secured upon their journals midway between the bearings thereof, and thevertical rolls T and V, arranged between the bearings of rolls A and Kon opposite sides of said 'rolls. whereby strain upon the upper andlower rolls shall be equally distributed between their respectivebearings, substantially as shown and described.

3. In a rolling-mill, the combination, with the gear-wheelsv O D,movable to andfrom each other, of the broad gear-wheel F, made broad toaccommodate the lateral adjustment of wheel D, and the gear-wheel E,adapted for accommodating the vertical adjustment of wheel 0substantial] y as shown and described.

WILHELM WENSTROM.

/ Witnesses:

JOHN ERIcsoN, ALEXIS BRAMBECK.

